M3E1S1E1N1C3E1P3H4A1L1A1
21 points
MESENCEPHALA is validvalid
MESENCEPHALON, a part of the brain [n]
MESENCEPHALON, the middle section of the embryonic brain [n]
MESENCEPHALON, a part of the brain [n]
MESENCEPHALON, the middle section of the embryonic brain [n]